川西低山区水稻大多分播在海拔900米左右，由于受低温的影响，水稻产量长期低而不稳。为此，我们将杂交水稻制种中第一期父本的温室二段育秧后，再于排苗秧田中盖薄膜的两次增温育秧技术，应用于大田水稻生产中。1992年至1994年，在我县城西乡蒙山、名雅等村，海拔920米地段上 Most of the rice in the western Sichuan low mountain area is broadcasted at about 900 meters above sea level. Due to the influence of low temperature, the rice yield is low and unstable for a long time. To this end, we hybrid rice hybrids in the first phase of the second generation of male parent greenhouse seedlings, and then in the row of seedling seedlings in the middle of the film twice warming breeding techniques used in field rice production. 1992 to 1994, in my county Xixiang Mengshan, elegant village, 920 meters above sea level